landslide

noun

natural disaster involving ground movement down a slope
lopsided political victory

Wiktionary

Pronunciation: /ˈlæn(d).slaɪd/

noun

Etymology: Etymology tree Proto-Indo-European *lendʰ- Proto-Indo-European *-om Proto-Germanic *landą Proto-West Germanic *land Old English land Middle English lond English land English slide English landslide From land + slide.

A natural disaster that involves the breakup and downhill flow of rock, mud, water and anything caught in the path.
“Near-synonym: mudflow”
“The landslides Wednesday in Zhejiang province, south of the financial hub of Shanghai, followed Typhoon Megi, which brought heavy rains and high winds to China and Taiwan this past week.[…] The second landslide in Wencheng county killed five people, with one person still missing, an official at the county’s flood control office said Saturday.”
A vote won by a wide or overwhelming majority.
“The candidate won at 61% to 39%, which most people are calling a landslide.”

verb

To undergo a landslide.
“So it landslid mightily, carrying off greens and fairways and all.”